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#1
April 23rd 17, 12:10 PM
posted to rec.radio.amateur.antenna
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Antenna for Marine VHF
On Sat, 22 Apr 2017 20:03:49 -0700, Jeff Liebermann
wrote: Conservative radio range on VHF is: Nautical_Miles = 1.225 * sqrt(antenna_ht_feet) Statute_Miles = 1.415 * sqrt(antenna_ht_feet) km = 4.124 * sqrt(antenna_ht_feet) Something is wrong with the km line above. Perhaps the antenna height should be in meters? Or, the constant should be 2.278. |
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#2
April 23rd 17, 06:49 PM
posted to rec.radio.amateur.antenna
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Antenna for Marine VHF
On Sun, 23 Apr 2017 07:10:17 -0400, Pat wrote:
On Sat, 22 Apr 2017 20:03:49 -0700, Jeff Liebermann wrote: Conservative radio range on VHF is: Nautical_Miles = 1.225 * sqrt(antenna_ht_feet) Statute_Miles = 1.415 * sqrt(antenna_ht_feet) km = 4.124 * sqrt(antenna_ht_feet) Something is wrong with the km line above. Perhaps the antenna height should be in meters? Or, the constant should be 2.278. Oops and thanks. That should be: Conservative radio range on VHF is: Nautical_Miles = 1.225 * sqrt(antenna_ht_feet) Statute_Miles = 1.415 * sqrt(antenna_ht_feet) km = 4.124 * sqrt(antenna_ht_meters) -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
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